Quad is a 16-voice software synthesizer from Rob Papen, offered as a VST2, AU and AAX instrument for Windows and macOS.
Quad at a glance
| Developer | Rob Papen |
|---|---|
| Type | Instruments / Synth |
| Formats | VST2, AU, AAX |
| Operating systems | Windows 7 or later, macOS |
| Architecture | 64-bit |
| Free trial | Available |
| Price on Plugin Boutique (October 2026) | €48.59 |
What Quad does
The GUI can be displayed at 100%, 150% or 200% of its size, and the synth responds to MIDI Program Change and MIDI Bank Select messages.
Key features
- 16-voice architecture. The synth runs sixteen voices, with the GUI scalable to 100%, 150% or 200% for different screen sizes.
- XY-pad modulation. Two XY-pads per oscillator move through the modulation possibilities, letting one movement shape several parameters.
- Alternate tunings. Tunings other than equal temperament can be loaded from .tun files.
- MIDI program and bank select. The synth responds to MIDI Program Change and MIDI Bank Select, so presets can be switched from a controller.
Compatibility
Quad is offered as VST2, AU and AAX for Windows 7 and later and for macOS, and a trial is available.
Quad compared with similar plugins
Tetrad, from Physical Audio, is a VST3, AU and AAX synth for Windows and macOS. SYSTEM-8, from Roland, is a VST2, AU and AAX synth for the same two systems.
| Plugin | Developer | Type | Formats | Systems | Price |
|---|---|---|---|---|---|
| Quad | Rob Papen | Synth | VST2, AU, AAX | Windows, macOS | €48.59 |
| Tetrad | Physical Audio | Synth | VST3, AU, AAX | Windows, macOS | €79.34 |
| Babylon 2.2 | W. A. Production | Synth | VST2, AU, AAX | Windows, macOS | €5.26 (regular €118.01) |
| SYSTEM-8 | Roland | Synth | VST2, AU, AAX | Windows, macOS | €130.90 |
| Objekt | Reason Studios | Synth | €98.18 |
Price and availability
Quad was listed on Plugin Boutique in October 2026 at €48.59. A free trial is offered. Prices change often, so the store page shows the current one.
Quad FAQ
Is there a working serial key or keygen for Quad?
Serial keys and keygens circulate alongside the cracked builds, and a working serial is the string most often typed with the Quad name.
Is Quad available as a torrent or magnet link?
Yes, the release is shared as a torrent and magnet link, packed as a repack in .rar and .iso.